Make the font names more reproducible

This should greatly reduce the noise crowdin creates
Before this the translations would often jump around in diff output this ought to make that a thing of the past.

bin/inkstitch-fonts-gettext

@@ -8,7 +8,7 @@ import json
 
 fonts_dir = os.path.join(os.path.dirname(__file__), "..", "fonts")
 
-for font in os.listdir(fonts_dir):
+for font in sorted(os.listdir(fonts_dir)):
 	with open(os.path.join(fonts_dir, font, "font.json")) as font_json:
 		font_metadata = json.load(font_json)
 		
@@ -16,4 +16,4 @@ for font in os.listdir(fonts_dir):
 		print "_(%s)" % repr(font_metadata.get("name", ""))
 		
 		print "# L10N description of font in fonts/%s" % font
-		print "_(%s)" % repr(font_metadata.get("description", ""))
+		print "_(%s)" % repr(font_metadata.get("description", ""))